I must say, many Brookline residents with a surfeit of civic pride would take issue with your classifying their thriving, proudly independent town as a mere suburb. Which is not to say it's not true, but watch out for that Brookline mafia!

(As a resident of Somerville, which is clearly a suburb of Boston, I understand how this can be a touchy subject. But we Somervillionaires can take pride in being not only Massachusetts's 12th largest city, but also the MOST DENSELY POPULATED! Eat your heart out, Brockton!)